Season the legs with garlic, ginger, aji panca paste, soy sauce, wine, bay leaves, and pepper. Marinade overnight.
The following day transfer the turkey legs and the marinade to a saucepan. Add 1 ½ cups water and cook covered, over medium heat, until the legs are tender, (about 1 hour and 30 minutes).
Chop the dried mushrooms, and add to the saucepan with their water after 30 minutes of cooking.
Taste for seasoning, and discard the bay leaves.
Dissolve the potato starch with 3 tablespoons cold water. Add to the saucepan, stirring until the sauce is lightly thick.
Sprinkle with parsley and serve.
Recipe by PERU DELIGHTS at https://perudelights.com/turkey-drumsticks-in-soy-sauce-for-the-holidays/